import {login, logout, getInfo} from '@/api/user'
import {
  getAccessToken,
  getRefreshToken,
  setAccessToken,
  setRefreshToken,
  removeAccessToken,
  removeRefreshToken, refreshToken
} from '@/utils/auth'
import router, {resetRouter} from '@/router'

const state = {
  access_token: getAccessToken(),
  refresh_token: getRefreshToken(),
  userId: '',
  name: '',
  username: '',
  email: '',
  avatar: '',
  permissions: [],
  department: '',
  mobile: ''
}

const mutations = {
  SET_ACCESS_TOKEN: (state, access) => {
    state.access_token = access
  },
  SET_REFRESH_TOKEN: (state, refresh) => {
    state.refresh_token = refresh
  },
  SET_USERID(state, userId) {
    state.userId = userId
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_USERNAME: (state, username) => {
    state.username = username
  },
  SET_EMAIL: (state, email) => {
    state.email = email
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_PERMISSIONS: (state, permissions) => {
    state.permissions = permissions
  },
  SET_DEPARTMENT: (state, department) => {
    state.department = department
  },
  SET_MOBILE: (state, mobile) => {
    state.mobile = mobile
  }
}

const actions = {
  // 登录
  login({
          commit
        }, userInfo) {
    const {username, password} = userInfo
    return new Promise((resolve, reject) => {
      login({username: username.trim(), password: password}).then(response => {
        const {data} = response
        commit('SET_ACCESS_TOKEN', data.access)
        commit('SET_REFRESH_TOKEN', data.refresh)
        setAccessToken(data.access)
        setRefreshToken(data.refresh)
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // 登录
  refreshToken({commit}) {
    return new Promise((resolve, reject) => {
      refreshToken(getRefreshToken()).then(response => {
        const {data} = response
        commit('SET_ACCESS_TOKEN', data.access)
        setAccessToken(data.access)
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // 获取当前登录用户信息
  getInfo({commit}) {
    return new Promise((resolve, reject) => {
      getInfo().then(response => {
        const data = response.data
        if (!data) {
          reject('验证失败，请重新登录')
        }
        const {id, username, name, avatar, email, permissions, department, mobile} = data
        commit('SET_USERID', id)
        commit('SET_NAME', name)
        commit('SET_USERNAME', username)
        commit('SET_EMAIL', email)
        commit('SET_AVATAR', avatar)
        commit('SET_PERMISSIONS', permissions)
        commit('SET_DEPARTMENT', department)
        commit('SET_MOBILE', mobile)
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout({commit, state, dispatch}) {
    return new Promise((resolve, reject) => {
      logout(state.access_token).then(() => {
        commit('SET_ACCESS_TOKEN', '')
        commit('SET_REFRESH_TOKEN', '')
        commit('SET_PERMISSIONS', [])
        commit('SET_USERID', '')
        removeAccessToken()
        removeRefreshToken()
        resetRouter()

        // reset visited views and cached views
        // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485
        dispatch('tagsView/delAllViews', null, {root: true})

        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // remove token
  resetToken({commit}) {
    return new Promise(resolve => {
      commit('SET_ACCESS_TOKEN', '')
      commit('SET_REFRESH_TOKEN', '')
      commit('SET_PERMISSIONS', [])
      commit('SET_USERID', '')
      removeAccessToken()
      removeRefreshToken()
      resolve()
    })
  },

  // dynamically modify permissions
  async changeRoles({commit, dispatch}, role) {
    const token = role + '-token'

    commit('SET_ACCESS_TOKEN', token)
    commit('SET_REFRESH_TOKEN', token)
    setAccessToken(token)
    setRefreshToken(token)

    const {roles} = await dispatch('getInfo')

    resetRouter()

    // generate accessible routes map based on roles
    const accessRoutes = await dispatch('permission/generateRoutes', roles, {root: true})
    // dynamically add accessible routes
    router.addRoutes(accessRoutes)

    // reset visited views and cached views
    dispatch('tagsView/delAllViews', null, {root: true})
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}
